A drilling device special for coal mine roadway water prevention and control

Abstract

The utility model provides a kind of coal mine tunnel water prevention and cure special drilling device, including drilling head and the drill pipe of detachable connection on drilling head, further including cart, drill hole is opened in cart, and drill rod is vertically penetrated, multiple vertical columns are arranged at intervals on the cart, vertical column is equipped with the sliding slot of vertical distribution, and the sliding block of sliding cooperation with sliding slot is equipped on drilling head, and the lower end of all sliding slots is open, so that after drilling head slides to cart along sliding slot, sliding block can be released from sliding slot. The utility model facilitates the drilling of roadway water prevention and cure to proceed, and reduce the security risk in the implementation of drilling.

Description

Technical Field

[0001] This utility model relates to the field of coal mine drilling technology, specifically a special drilling device for water control in coal mine roadways. Background Technology

[0002] Drilling equipment plays an irreplaceable role in water control and geological surveying in coal mines. First, drilling can accurately detect hydrogeological conditions such as underground aquifers and fracture zones, providing data support for water control plans. Second, drilling equipment can construct engineering holes such as drainage holes and grouting holes to achieve pre-emptive drainage or reinforcement of surrounding rock and prevent water inrush accidents. In addition, in open-pit coal mines, drilling can also be used for slope stability monitoring to prevent surface water infiltration from causing landslides.

[0003] Patent documents such as CN202220679595.8 and CN202420226581.X disclose similar drilling equipment, all of which have similar drilling heads and drill rods detachably connected to the bottom of the drilling head. During operation, personnel hold handles / lifts located on both sides of the drilling head, and a motor within the drilling head drives the drill rod to rotate for drilling. The orientation of the drill rod in this type of drilling equipment relies solely on manual control. Due to the significant weight of the drilling head, the drill rod is prone to tipping, making it difficult to ensure the verticality of the borehole. Furthermore, the workload for personnel is high, and there are certain safety risks involved. Utility Model Content

[0004] The present invention aims to provide a special drilling device for water control in coal mine roadways, which facilitates water control drilling in roadways and reduces safety risks during drilling.

[0005] To solve the above technical problems, the specific solution adopted by this utility model is as follows: a special drilling device for water prevention and control in coal mine roadways, including a drilling head and a drill rod detachably connected to the drilling head, and a trolley. The trolley has a drill hole for the drill rod to pass through vertically. Multiple columns are spaced apart on the trolley, and each column has a vertically distributed sliding groove. The drilling head has a slider that slides in cooperation with the sliding groove, and the lower end of all the sliding grooves is open, so that after the drilling head slides along the sliding groove onto the trolley, the slider can be disengaged from the sliding groove.

[0006] Preferably, a guide groove is provided on the column at the lower end of the slide groove for the slider to slide into the slide groove.

[0007] Preferably, the guide groove is funnel-shaped with the larger end facing downwards.

[0008] Preferably, the column has a first through hole distributed horizontally near its top, which allows the insertion of a rod to suspend the drilling head.

[0009] Preferably, the outer periphery of the cart is provided with a plurality of second through holes running vertically through it, the second through holes allowing ground stakes to be inserted and driven into the ground, and the upper end of the ground stakes is provided with a stabilizing block for pressing tightly against the upper edge of the cart.

[0010] Preferably, the lower edge of the stabilizing block has a pry hole.

[0011] Preferably, a triangular support plate is provided between the column and the trolley, and the upper end of the column is fixedly connected by a connecting plate.

[0012] Preferably, the trolley has two uprights on each side of the direction of travel.

[0013] Preferably, handles are provided on both sides of the drilling rig head in the direction of travel of the trolley.

[0014] Preferably, the trolley is equipped with a receiving slot for the drilling rig head to fall into.

[0015] This invention features a trolley with multiple uprights. Each upright has a groove for the drilling head to slide vertically. This allows personnel to apply downward pressure only to the drilling head during drilling, eliminating the need to support the entire weight of the equipment or adjust the drill rod angle. This significantly reduces the labor intensity of drilling operations in tunnels and avoids safety risks caused by equipment tipping. Furthermore, because the drilling equipment is stably mounted on the trolley and can only move vertically, the verticality of the borehole is guaranteed.

[0016] In this invention, sliding grooves are provided on both sides of the drilling head to improve the stability of the drilling head sliding downwards during drilling. Furthermore, the lower end of the sliding groove is open. After drilling is completed and the drill rod is removed from the drilling head, and the drilling head is placed downwards on the trolley, the slider disengages from the open position, thus releasing the sliding pair connection between the slider and the sliding groove. Therefore, when this invention is pushed by personnel in undulating or potholed tunnels, it significantly avoids the drilling head from getting stuck in the corresponding sliding grooves due to inconsistent swaying, and prevents impact damage and further jamming caused by continuous bumps. This not only reduces the processing precision requirements of this invention but also increases its service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model before drilling begins;

[0018] Figure 2 This is a schematic diagram of the structure at the bottom of the sliding groove on the column in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the present invention in the transport state;

[0020] The markings in the diagram are: 1. Push rod, 2. Stabilizing block, 3. Pry hole, 4. Second perforation, 5. Cart, 6. Ground stake, 7. Drill hole, 8. Receiving groove, 9. Triangular support plate, 10. Drill rod, 11. Column, 12. Insert rod, 13. First perforation, 14. Handle, 15. Slider, 16. Slide groove, 17. Connecting plate, 18. Drill head, 19. Guide groove. Detailed Implementation

[0021] like Figure 1 As shown, this utility model discloses a special drilling device for water control in coal mine roadways, mainly comprising a trolley 5 and a drilling head 18 mounted on the trolley 5. The drilling head 18 is similar to conventional roadway drilling equipment, containing an internal motor. The motor output shaft is detachably connected to the drill rod 10, allowing the motor to drive the drill rod 10 for drilling. The trolley 5 can support the drilling head 18 in both operating and transport states, ensuring the quality of the drilled hole, facilitating the transport of the drilling head 18, and reducing the risk of damage during the interaction between the drilling head 18 and the trolley 5.

[0022] A push rod 1 is provided at the left end of the trolley 5, allowing personnel to hold the push rod 1 and push and pull the trolley 5 forward. Four rectangular columns 11 and a drill hole 7 for the drill rod 10 to pass through are spaced apart on the top of the trolley 5. The four columns 11 are arranged in pairs on the front and rear sides of the drilling head 18, and are reinforced with triangular support plates 9 to enhance their connection to the trolley 5. The tops of the columns 11 are connected as a single unit by connecting plates 17 to further improve stability. Slide grooves 16 are provided on the sides of the columns 11 facing the drilling head 18. Correspondingly, sliders 15 are provided on the front and rear sides of the drilling head 18, respectively, to slide and engage with the corresponding slide grooves 16. Because the chute 16 is vertically oriented, during the drilling process where the drill head 18 drives the drill rod 10 to rotate, the personnel only need to press down on the drill head 18 by using the handles 14 located on both sides of the drill head 18. This allows the drill rod 10 to complete the drilling and hole opening operation vertically downwards under the weight of the drill head 18 and the pressure applied by the personnel.

[0023] At the top of each of the four pillars 11, there are first through holes 13 of equal height, which are distributed horizontally. Figure 1As shown, a rod 12 can be inserted into the first perforation 13 to support the lower edge of the drilling head 18, facilitating the assembly and disassembly of the drill rod 10. Second perforations 4 are vertically distributed at the four corners of the trolley 5. After the ground nail 6 is driven into the ground through the second perforation 4, the device can be stably fixed to the ground, preventing the trolley 5 from moving during drilling and further ensuring the drilling and hole-opening effect. In this embodiment, a stabilizing block 2 is provided at the upper end of the ground nail 6. After the ground nail 6 is driven into the ground, the lower edge of the stabilizing block 2 also presses tightly against the upper edge of the trolley 5, and the large contact area between the two improves the stability. A pry hole 3 is also provided at the lower edge of the stabilizing block 2. After drilling is completed, tools such as a pry bar can be inserted into this pry hole 3 to pry and pull out the ground nail 6.

[0024] like Figure 2 As shown, the lower end of the chute 16 in this invention is open, and there is a certain distance between it and the upper edge of the trolley 5. After drilling is completed and the drill rod 10 is removed from the drilling head 18, the drilling head 18 can be lowered onto the trolley 5 with the support of personnel. At this time, the slider 15 disengages from the chute 16, and the sliding pair composed of the chute 16 and the slider 15 is separated. Maintaining this separation, the turntable pushes the trolley 5 to move in the uneven tunnel, which can prevent the sliders 15 on both sides of the drilling head 18 from getting stuck in the chute 16 due to inconsistent sliding amplitude on the front and rear sides, or from deforming and failing due to further shaking and squeezing of the chute 16. In this embodiment, a guide groove 19 with the same depth as the chute 16 is also provided at the bottom of the chute 16. The guide groove 19 is funnel-shaped with the larger end facing downward, so that personnel can lift the drilling head 18 upward and allow the slider 15 to enter the corresponding chute 16.

[0025] To further reduce the risk of damage to the drilling head 18 from impacting the slide 16 during bumpy operation, a receiving slot 8 is also provided on the trolley 5, allowing for... Figure 3 As shown, the drilling head 18 is directly placed into the receiving groove 8 and simply tied and secured with ropes.

[0026] Based on the above technical solutions, the transfer status of this utility model is as follows: Figure 2 As shown, the drill head 18 is located in the receiving cavity, which lowers the center of gravity of this invention and reduces the risk of tipping over during the pushing and pulling of the trolley 5. During drilling preparation, the ground nail 6 is first driven into the ground through the second hole 4 to maintain overall stability. Then, personnel lift the drill head 18 to a position near the connecting plate 17, and the insertion rod 12 is inserted through the first hole 13, with the insertion rod 12 supporting the bottom of the drill head 18. After the drill rod 10 is installed onto the drill head 18, drilling is complete. Figure 1 The system is in standby mode. After pulling out the plug rod 12 and starting the drilling head 18, drilling operations can begin.

Claims

1. A special drilling device for water control in coal mine roadways, comprising a drilling head (18) and a drill rod (10) detachably connected to the drilling head (18), characterized in that: It also includes a trolley (5), which has a drill hole (7) for the drill rod (10) to pass through vertically. Multiple columns (11) are spaced apart on the trolley (5), and each column (11) has a vertically distributed groove (16). The drilling head (18) is provided with a slider (15) that slides with the groove (16). The lower end of all the grooves (16) is open, so that after the drilling head (18) slides along the groove (16) onto the trolley (5), the slider (15) can be dislodged from the groove (16).

2. The drilling device for water control in coal mine roadways as described in claim 1, characterized in that: A guide groove (19) is provided at the lower end of the slide groove (16) on the column (11) for the slider (15) to slide into the slide groove (16).

3. The special drilling device for water control in coal mine roadways as described in claim 2, characterized in that: The guide groove (19) is flared and the larger end is downward.

4. The special drilling device for water control in coal mine roadways as described in claim 1, characterized in that: The column (11) has a first through hole (13) located near its top, which is distributed horizontally. The first through hole (13) allows the insertion rod (12) to be inserted to suspend the drilling head (18) in the air.

5. The special drilling device for water control in coal mine roadways as described in claim 1, characterized in that: The outer periphery of the cart (5) is provided with multiple vertical through holes (4), which allow ground nails (6) to be inserted and driven into the ground. The upper end of the ground nail (6) is provided with a stabilizing block (2) for pressing tightly against the upper edge of the cart (5).

6. The special drilling device for water control in coal mine roadways as described in claim 5, characterized in that: The lower edge of the stabilizing block (2) has a pry hole (3).

7. The special drilling device for water control in coal mine roadways as described in claim 1, characterized in that: A triangular support plate (9) is provided between the column (11) and the trolley (5), and the upper end of the column (11) is fixedly connected by a connecting plate (17).

8. The special drilling device for water control in coal mine roadways as described in claim 1, characterized in that: Two pillars (11) are provided on the two sides of the cart (5) in the direction of travel.

9. A special drilling device for water control in coal mine roadways as described in claim 8, characterized in that: Handles (14) are provided on both sides of the drilling head (18) in the direction of travel of the trolley (5).

10. A special drilling device for water control in coal mine roadways as described in claim 1, characterized in that: The trolley (5) is equipped with a receiving slot (8) for the drilling head (18) to fall into.

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